System for studying a sample of material using a heavy ion induced mass spectrometer source
Abstract
A heavy ion generator is used with a plasma desorption mass spectrometer to provide an appropriate neutron flux in the direction of a fissionable material in order to desorb and ionize large molecules from the material for mass analysis. The heavy ion generator comprises a fissionable material having a high (n,f) reaction cross section. The heavy ion generator also comprises a pulsed neutron generator that is used to bombard the fissionable material with pulses of neutrons, thereby causing heavy ions to be emitted from the fissionable material. These heavy ions impinge on a material, thereby causing ions to desorb off that material. The ions desorbed off the material pass through a time-of-flight mass analyzer, wherein ions can be measured with masses greater than 25,000 amu. 3 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Lockheed Martin Spec Component
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 672578
- Patent Number(s):
- 5,784,424
- Application Number:
- PAN: 8-674,970
- Assignee:
- Dept. of Energy, Washington, DC (United States) PTO; SCA: 400102; PA: EDB-98:120301; SN: 98002024812
- DOE Contract Number:
- AC04-92AL73000
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 21 Jul 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 40 CHEMISTRY; TIME-OF-FLIGHT MASS SPECTROMETERS; ION SOURCES; HEAVY IONS; FISSIONABLE MATERIALS; MASS SPECTROSCOPY; NEUTRON SOURCES
Citation Formats
Fries, D.P., and Browning, J.F. System for studying a sample of material using a heavy ion induced mass spectrometer source. United States: N. p., 1998.
Web.
Fries, D.P., & Browning, J.F. System for studying a sample of material using a heavy ion induced mass spectrometer source. United States.
Fries, D.P., and Browning, J.F. Tue .
"System for studying a sample of material using a heavy ion induced mass spectrometer source". United States.
@article{osti_672578,
title = {System for studying a sample of material using a heavy ion induced mass spectrometer source},
author = {Fries, D.P. and Browning, J.F.},
abstractNote = {A heavy ion generator is used with a plasma desorption mass spectrometer to provide an appropriate neutron flux in the direction of a fissionable material in order to desorb and ionize large molecules from the material for mass analysis. The heavy ion generator comprises a fissionable material having a high (n,f) reaction cross section. The heavy ion generator also comprises a pulsed neutron generator that is used to bombard the fissionable material with pulses of neutrons, thereby causing heavy ions to be emitted from the fissionable material. These heavy ions impinge on a material, thereby causing ions to desorb off that material. The ions desorbed off the material pass through a time-of-flight mass analyzer, wherein ions can be measured with masses greater than 25,000 amu. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {7}
}